Symmetrical balance type synchronous rotary multiphase multiphase pump device

Abstract

The utility model discloses a symmetrical balance type synchronous rotation multiphase mixed transportation pump device which comprises a first synchronous rotation multiphase mixed transportation pump and a second synchronous rotation multiphase mixed transportation pump. The phase difference of sliding plates for driving cylinder bodies to rotate synchronously in the internal structures of the first synchronous rotation multiphase mixed transportation pump and the second synchronous rotation multiphase mixed transportation pump is set to be 180 degrees, and the first synchronous rotation multiphase mixed transportation pump and the second synchronous rotation multiphase mixed transportation pump share one set of driving mechanism. The reliability of the multiphase multiphase pump device can be remarkably improved, the service life of the multiphase multiphase pump device can be remarkably prolonged, power consumption is reduced, and energy conservation and emission reduction are achieved; in the actual application process of an oil and gas field, any series-parallel connection combination is achieved, various operation working conditions are met, the device can be maintained under the condition that the oil and gas field does not stop production, and the actual production requirement is better met.

Description

Technical Field

[0001] The utility model relates to a symmetrical balanced synchronous rotary multiphase mixed delivery pump device, belonging to the technical field of multiphase mixed delivery. Background Art

[0002] In the process of oil and gas field development, multiphase mixed flow technology has a series of advantages such as streamlining process flow, reducing employee workload, and improving digital management level. In recent years, there have been volumetric multiphase mixed flow pump products such as twin-screw mixed flow pumps, single-screw mixed flow pumps, and rotor pumps. However, there are a series of problems such as poor reliability, large vibration, high power consumption, and low efficiency, which seriously limit their application scope. In the field of oil and gas field development, there is currently no reliable and mature solution.

[0003] The discharge process of the positive displacement multiphase mixed pump is intermittent, that is, the discharge pressure and displacement increase from 0 to the maximum, and the instantaneous discharge displacement changes periodically, which will significantly cause vibration of the equipment and cause additional power consumption. In this regard, the main method currently is to set a buffer tank at the outlet of the mixed pump to solve this problem, but due to the limitation of the size of the whole machine and the corresponding cost, this solution cannot achieve the optimal solution to the vibration and additional power consumption problems, and there is currently no more perfect solution. Summary of the invention

[0004] The utility model aims to solve the problems of poor reliability, large vibration, high power consumption and low efficiency of the existing multiphase mixed delivery pump, and further proposes a symmetrical balanced synchronous rotary multiphase mixed delivery pump device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a symmetrical balanced synchronous rotation multiphase mixed pump device, which includes a first synchronous rotation multiphase mixed pump and a second synchronous rotation multiphase mixed pump, the phase difference of the slide plate driving the cylinder body to rotate synchronously in the internal structure of the first synchronous rotation multiphase mixed pump and the second synchronous rotation multiphase mixed pump is set to 180°, and the first synchronous rotation multiphase mixed pump and the second synchronous rotation multiphase mixed pump share a set of driving mechanisms.

[0006] As a further preferred embodiment of the present invention, the inlet ends of the first synchronous rotary multiphase mixed pump and the second synchronous rotary multiphase mixed pump are connected to the oil and gas inlet of the unit through the unit inlet cavity, and the outlet ends are connected to the oil and gas outlet of the unit through the unit outlet cavity. The oil and gas medium enters the first synchronous rotary multiphase mixed pump and the second synchronous rotary multiphase mixed pump through the oil and gas inlet of the unit and the unit inlet cavity for pressurization. The pressurized oil and gas medium fills the unit outlet cavity, and then enters the downstream process through the unit outlet cavity and the unit oil and gas outlet.

[0007] As a further preferred embodiment of the present invention, the displacement of the first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are completely the same.

[0008] As a further preferred embodiment of the present invention, the first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are arranged in parallel inside the device.

[0009] As a further preferred embodiment of the present invention, the first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are driven simultaneously by a single main shaft.

[0010] As a further preferred embodiment of the present invention, the main shaft is connected to a transmission gear box, and the transmission gear box is driven by a motor or a diesel engine.

[0011] As a further preferred embodiment of the present invention, both the first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump have no air valve.

[0012] As a further preferred embodiment of the present invention, the device as a whole is regarded as a booster unit, which can be connected in series or parallel via pipelines to meet the requirements of different pressures and displacements.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model overcomes the problems of poor reliability, large vibration, high power consumption and low efficiency of existing positive displacement multiphase mixed flow pumps. In particular, the utility model can significantly improve the reliability and operating life of the multiphase mixed flow pump device, reduce power consumption, save energy and reduce emissions. In the actual application process of oil and gas fields, any series and parallel combination can be realized to meet a variety of operating conditions, and the oil and gas wells can be maintained without stopping production, which better meets the actual production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the symmetrical balanced synchronous rotating multiphase mixed pump device.

[0016] Figure 2 It is a top view of a symmetrical balanced synchronous rotating multiphase mixed pump device.

[0017] Marked in the figure are: 101, first synchronous rotating multiphase mixed flow pump; 102, second synchronous rotating multiphase mixed flow pump; 103, unit oil and gas inlet; 104, unit oil and gas outlet; 105, unit inlet cavity; 106, unit outlet cavity; 107, main shaft; 108, transmission gear box. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 and 2 As shown, a symmetrical balanced synchronous rotation multiphase mixed flow pump device includes a first synchronous rotation multiphase mixed flow pump 101 and a second synchronous rotation multiphase mixed flow pump 102, wherein the phase difference of the slide plates driving the cylinder bodies to rotate synchronously in the internal structures of the first synchronous rotation multiphase mixed flow pump 101 and the second synchronous rotation multiphase mixed flow pump 102 is set to 180°, and the first synchronous rotation multiphase mixed flow pump 101 and the second synchronous rotation multiphase mixed flow pump 102 share a set of driving mechanisms; the first synchronous rotation multiphase mixed flow pump 101 and the second synchronous rotation multiphase mixed flow pump 102 The inlet end of the synchronous rotating multiphase mixed flow pump 102 is connected to the unit oil and gas inlet 103 through the unit inlet cavity 105, and the outlet end is connected to the unit oil and gas outlet 104 through the unit outlet cavity 106. The oil and gas medium enters the first synchronous rotating multiphase mixed flow pump 101 and the second synchronous rotating multiphase mixed flow pump 102 through the unit oil and gas inlet 103 and the unit inlet cavity 105 for pressurization. The pressurized oil and gas medium fills the unit outlet cavity 106, and then enters the downstream process through the unit outlet cavity 106 and the unit oil and gas outlet 104.

[0020] In this embodiment, the displacements of the synchronous rotation multiphase mixed flow pump 1 101 and the synchronous rotation multiphase mixed flow pump 2 102 are completely the same.

[0021] In this embodiment, the synchronous rotation multiphase mixed flow pump 1 101 and the synchronous rotation multiphase mixed flow pump 2 102 are arranged in parallel inside the device.

[0022] In this embodiment, the synchronous rotating multiphase mixed flow pump 1 101 and the synchronous rotating multiphase mixed flow pump 2 102 are driven simultaneously by a single main shaft. The main shaft 107 is connected to the transmission gear box 108, and the transmission gear box 108 can be driven by a motor or a diesel engine. Figure 2 As shown, the transmission gear box 108 is arranged horizontally compared with the synchronous rotation multiphase mixed flow pump 1 101 and the synchronous rotation multiphase mixed flow pump 2 102 .

[0023] In this embodiment, the synchronous rotation multiphase mixed flow pump 1 101 and the synchronous rotation multiphase mixed flow pump 2 102 have no air valves.

[0024] In this embodiment, the device can be regarded as a booster unit as a whole, which can be connected by pipelines to achieve arbitrary series and parallel connection to meet the needs of different pressures and displacements.

[0025] When the symmetrically balanced synchronous rotary multiphase mixed pump device is in operation, the oil and gas medium enters the oil and gas inlet 103 of the unit, and then the oil and gas medium fills the unit inlet cavity 105. Due to the movement characteristics of the synchronous rotary multiphase mixed pump, the oil and gas suction process continues in one rotation, so the oil and gas medium in the unit inlet cavity 105 flows smoothly and the pressure is fixed at a certain value.

[0026] The working principle of this device is as follows: the oil and gas medium in the unit inlet cavity 105 enters the synchronous rotating multiphase mixed flow pump 1 101 and the synchronous rotating multiphase mixed flow pump 2 102 for pressurization respectively, and the pressurized oil and gas medium fills the unit outlet cavity 106. The synchronous rotating multiphase mixed flow pump is a volumetric mixed flow pump, and its discharge process is intermittent. The required back pressure value must be reached before the oil and gas medium can be discharged. Therefore, the phase difference of the slide plate that drives the cylinder body to rotate synchronously in the internal structure of the synchronous rotating multiphase mixed flow pump 1 101 and the synchronous rotating multiphase mixed flow pump 2 102 is set to 180°, so that the total instantaneous oil and gas delivery volume of the synchronous rotating multiphase mixed flow pump 1 101 and the synchronous rotating multiphase mixed flow pump 2 102 is always within the design range, close to a fixed value, and minimizes periodic fluctuations. The oil and gas medium in the unit outlet cavity 106 enters the downstream process through the unit oil and gas outlet.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the utility model in any form, and all technical solutions obtained by equivalent replacement and other methods fall within the protection scope of the utility model. The parts not involved in the utility model are the same as the existing technology or can be implemented by the existing technology.

Claims

1. A symmetrical balanced synchronous rotating multiphase mixed pump device, characterized in that: The invention comprises a first synchronous rotation multiphase mixed pump and a second synchronous rotation multiphase mixed pump, wherein the phase difference of the slide plates driving the cylinder bodies to rotate synchronously in the internal structures of the first synchronous rotation multiphase mixed pump and the second synchronous rotation multiphase mixed pump is set to 180°, and the first synchronous rotation multiphase mixed pump and the second synchronous rotation multiphase mixed pump share a set of driving mechanisms.

2. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The inlet ends of the first synchronous rotary multiphase mixed flow pump and the second synchronous rotary multiphase mixed flow pump are connected to the unit oil and gas inlet through the unit inlet cavity, and the outlet ends are connected to the unit oil and gas outlet through the unit outlet cavity. The oil and gas medium enters the first synchronous rotary multiphase mixed flow pump and the second synchronous rotary multiphase mixed flow pump through the unit oil and gas inlet and the unit inlet cavity for pressurization. The pressurized oil and gas medium fills the unit outlet cavity, and then enters the downstream process through the unit outlet cavity and the unit oil and gas outlet.

3. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The displacement of the first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are completely the same.

4. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are arranged in parallel inside the device.

5. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump are driven simultaneously by a single main shaft.

6. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 5, characterized in that: The main shaft is connected to a transmission gear box, and the transmission gear box is driven by a motor or a diesel engine.

7. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The first synchronous rotation multiphase mixed flow pump and the second synchronous rotation multiphase mixed flow pump both have no gas valve.

8. A symmetrical balanced synchronous rotating multiphase mixed pump device according to claim 1, characterized in that: The device as a whole is regarded as a booster unit, which can be connected in series or parallel via pipelines to meet the requirements of different pressures and displacements.

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